<template>
    <div>
        <TypeNav />
        <div class="main">
            <div class="py-container">
                <!--bread-->
                <div class="bread">
                    <ul class="fl sui-breadcrumb">
                        <li>
                            <a href="#">全部结果</a>
                        </li>
                    </ul>
                    <ul class="fl sui-tag">
                        <li class="with-x" v-if="categoryName">{{categoryName}}<i @click="removeCategoryName">×</i></li>
                        <li class="with-x" v-if="keyword">{{keyword}}<i @click="removeKeyword">×</i></li>
                        <li class="with-x" v-if="options.trademark">{{options.trademark.split(":")[1]}}<i
                                @click="removeTrademark">×</i></li>
                        <li class="with-x" v-for="(item,index) in options.props" :key="index">
                            {{item.split(":")[2]}}:{{item.split(":")[1]}}
                            <i @click="removeValue(index)">×</i></li>
                    </ul>
                </div>

                <!--selector-->
                <SearchSelector :searchByBrand="searchByBrand" @searchByAttrs="searchByAttrs" />

                <!--details-->
                <div class="details clearfix">
                    <div class="sui-navbar">
                        <div class="navbar-inner filter">
                            <ul class="sui-nav">
                                <li :class="{active:active('1')}" @click="order('1')">
                                    <a href="javascript:;">
                                         <span>综合</span>
                                        <i v-if="active('1')" :class="changeArrow"></i>
                                        <!-- <i v-if="options.order.split(':')[1] === 'asc'" class="iconfont icon-arrowTop"></i> -->
                                    </a>
                                </li>
                                <li>
                                    <a href="javascript:;">销量</a>
                                </li>
                                <li>
                                    <a href="javascript:;">新品</a>
                                </li>
                                <li>
                                    <a href="javascript:;">评价</a>
                                </li>
                                <li :class="{active:active('2')}" @click="order('2')">
                                    <a href="javascript:;">
                                        <span>价格</span>
                                        <i  v-if="active('2')" :class="changeArrow"></i>
                                        <!-- <i v-show="options.order.split(':')[1] === 'asc'" class="iconfont icon-arrowTop" ></i> -->
                                    </a>
                                </li>
                            </ul>
                        </div>
                    </div>
                    <div class="goods-list">
                        <ul class="yui3-g">
                            <li class="yui3-u-1-5" v-for="goods in searchList.goodsList" :key="goods.id">
                                <div class="list-wrap">
                                    <div class="p-img">
                                        <router-link :to="`/detail/${goods.id}`"><img v-lazy="goods.defaultImg" /></router-link>
                                    </div>
                                    <div class="price">
                                        <strong>
                                            <em>¥ </em>
                                            <i>{{goods.price}}</i>
                                        </strong>
                                    </div>
                                    <div class="attr">
                                        <a target="_blank" href="item.html" :title="goods.title">{{goods.title}}</a>
                                    </div>
                                    <div class="commit">
                                        <i class="command">已有<span>2000</span>人评价</i>
                                    </div>
                                    <div class="operate">
                                        <a href="success-cart.html" target="_blank"
                                            class="sui-btn btn-bordered btn-danger">加入购物车</a>
                                        <a href="javascript:void(0);" class="sui-btn btn-bordered">收藏</a>
                                    </div>
                                </div>
                            </li>
                        </ul>
                    </div>
                    <el-pagination class="pagination" @size-change="handleSizeChange"
                        @current-change="handleCurrentChange" :current-page="options.pageNo" 
                        :page-sizes="[5,10,20,30]"
                        :page-size="options.pageSize" layout="total, sizes, prev, pager, next, jumper"
                        :total="searchList.total">
                    </el-pagination>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    import SearchSelector from './SearchSelector/SearchSelector'
    import {
        mapActions,
        mapState
    } from 'vuex'
    export default {
        name: 'Search',
        props: ['keyword', 'categoryName', 'category1Id', 'category2Id', 'category3Id'],
        data() {
            return {
                options: {
                    pageNo: 1,
                    pageSize: 30,
                    keyword: '',
                    categoryName: '',
                    category1Id: '',
                    category2Id: '',
                    category3Id: '',
                    trademark: '',
                    props: [],
                    order:'2:desc'
                }
            }
        },
        computed: {
            ...mapState({
                searchList: state => state.search.searchList
            }),
            //控制哪个被选中
            active(){
                return flag =>{
                    return this.options.order.split(':')[0] === flag;
                }
            },
            //控制箭头向上或者向下
            changeArrow(){
                return this.options.order.split(':')[1] === 'asc' ? 'iconfont icon-arrowTop':'iconfont icon-arrowBottom-fill'
            }
        },
        components: {
            SearchSelector
        },
        methods: {
            ...mapActions(['getSearchList']),
            //把props接收到的数据整合到data中,不会太散,发生改变时要重新请求数据
            updateOptions() {
                this.options = {
                    ...this.options,
                    //有值的话,会覆盖上面扩展出来的属性
                    keyword: this.keyword,
                    categoryName: this.categoryName,
                    category1Id: this.category1Id,
                    category2Id: this.category2Id,
                    category3Id: this.category3Id
                }
            },
            // handleSizeChange和handleCurrentChange是element组件库定义的事件 当前页改变时会触发,函数参数是当前页
            async handleSizeChange(num) {
                this.options.pageSize = num;
                await this.getSearchList(this.options)

            },
            async handleCurrentChange(index) {
                this.options.pageNo = index
                //当前页改变,重新请求搜索页的数据
                await this.getSearchList(this.options)
            },
            //删除面包屑导航事件
            removeCategoryName() {
                //删除分类名称和id
                this.options.categoryName = ''
                this.options.category1Id = ''
                this.options.category2Id = ''
                this.options.category3Id = ''
                //同步url,重新跳转到search页面, 去掉query,this.$route.path包含path也包含params
                this.$router.push({
                    path: this.$route.path,
                    hash: `#${Date.now()}`
                })

            },
            removeKeyword() {
                this.options.keyword = ''
                //同步url,重新跳转到search页面, 去掉params,
                this.$router.push({
                    path: '/search',
                    query: this.$route.query,
                    hash: `#${Date.now()}`
                })
                //删除关键字时清空输入框
                this.$bus.$emit("removeKeyword", '')
            },
            //根据品牌过滤
            async searchByBrand(id, name) {
                if (this.options.trademark.includes(`${id}:${name}`)) return
                this.options.trademark = `${id}:${name}`
                await this.handleCurrentChange(1)
            },
            //面包屑导航移除品牌
            async removeTrademark() {
                this.options.trademark = '',
                    await this.handleCurrentChange(1)
            },
            //根据属性过滤
            async searchByAttrs({ id,value,valueName }) {
                if (this.options.props.includes(`${id}:${value}:${valueName}`))
                    return
                this.options.props.push(`${id}:${value}:${valueName}`)
                await this.handleCurrentChange(1)
            },
            async removeValue(index){
                this.options.props.splice(index, 1)
                await this.handleCurrentChange(1)
            },
            //排序逻辑
            async order(index){
                if(this.options.order.split(':')[0] === index){
                    //当前字段未改变
                    let flag =  this.options.order.split(':')[1] === 'asc' ? 'desc' : 'asc'
                    this.options.order = `${index}:${flag}`
                }else{
                    //当前字段已改,默认使用降序
                    this.options.order = `${index}:desc`
                }
                await this.handleCurrentChange(1)
            }
        },
        watch: {
            $route: {
                async handler() {
                    //同步路由中的数据至data中,
                    this.updateOptions()
                    this.options.trademark = ''
                    //路由中数据发生变化时 要重新请求数据,
                    //充值搜索条件,分页要从第一页开始
                    await this.handleCurrentChange(1)
                },
                deep: true,
                // 初始化时就会监听
                immediate: true
            }
        },
        //相同组件之间的跳转,组件会复用,钩子函数不会触发,所以不能在生命周期函数中发送请求
        // async created() {
        //     await this.getSearchList({})
        // }
    }
</script>

<style lang="less" scoped>
    .main {
        margin: 10px 0;

        .py-container {
            width: 1200px;
            margin: 0 auto;

            .bread {
                margin-bottom: 5px;
                overflow: hidden;

                .sui-breadcrumb {
                    padding: 3px 15px;
                    margin: 0;
                    font-weight: 400;
                    border-radius: 3px;
                    float: left;

                    li {
                        display: inline-block;
                        line-height: 18px;

                        a {
                            color: #666;
                            text-decoration: none;

                            &:hover {
                                color: #4cb9fc;
                            }
                        }
                    }
                }

                .sui-tag {
                    margin-top: -5px;
                    list-style: none;
                    font-size: 0;
                    line-height: 0;
                    padding: 5px 0 0;
                    margin-bottom: 18px;
                    float: left;

                    .with-x {
                        font-size: 12px;
                        margin: 0 5px 5px 0;
                        display: inline-block;
                        overflow: hidden;
                        color: #000;
                        background: #f7f7f7;
                        padding: 0 7px;
                        height: 20px;
                        line-height: 20px;
                        border: 1px solid #dedede;
                        white-space: nowrap;
                        transition: color 400ms;
                        cursor: pointer;

                        i {
                            margin-left: 10px;
                            cursor: pointer;
                            font: 400 14px tahoma;
                            display: inline-block;
                            height: 100%;
                            vertical-align: middle;
                        }

                        &:hover {
                            color: #28a3ef;
                        }
                    }
                }
            }

            .details {
                margin-bottom: 5px;

                .sui-navbar {
                    overflow: visible;
                    margin-bottom: 0;

                    .filter {
                        min-height: 40px;
                        padding-right: 20px;
                        background: #fbfbfb;
                        border: 1px solid #e2e2e2;
                        padding-left: 0;
                        border-radius: 0;
                        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

                        .sui-nav {
                            position: relative;
                            left: 0;
                            display: block;
                            float: left;
                            margin: 0 10px 0 0;

                            li {
                                float: left;
                                line-height: 18px;

                                a {
                                    display: flex;
                                    align-items:center;
                                    cursor: pointer;
                                    padding: 11px 15px;
                                    color: #777;
                                    text-decoration: none;
                                }

                                &.active {
                                    a {
                                        background: #e1251b;
                                        color: #fff;
                                    }
                                }
                            }
                        }
                    }
                }

                .goods-list {
                    margin: 20px 0;

                    ul {
                        display: flex;
                        flex-wrap: wrap;

                        li {
                            height: 100%;
                            width: 20%;
                            margin-top: 10px;
                            line-height: 28px;

                            .list-wrap {
                                .p-img {
                                    padding-left: 15px;
                                    width: 215px;
                                    height: 255px;

                                    a {
                                        color: #666;

                                        img {
                                            max-width: 100%;
                                            height: auto;
                                            vertical-align: middle;
                                        }
                                    }
                                }

                                .price {
                                    padding-left: 15px;
                                    font-size: 18px;
                                    color: #c81623;

                                    strong {
                                        font-weight: 700;

                                        i {
                                            margin-left: -5px;
                                        }
                                    }
                                }

                                .attr {
                                    padding-left: 15px;
                                    width: 85%;
                                    overflow: hidden;
                                    margin-bottom: 8px;
                                    min-height: 38px;
                                    cursor: pointer;
                                    line-height: 1.8;
                                    display: -webkit-box;
                                    -webkit-box-orient: vertical;
                                    -webkit-line-clamp: 2;

                                    a {
                                        color: #333;
                                        text-decoration: none;
                                    }
                                }

                                .commit {
                                    padding-left: 15px;
                                    height: 22px;
                                    font-size: 13px;
                                    color: #a7a7a7;

                                    span {
                                        font-weight: 700;
                                        color: #646fb0;
                                    }
                                }

                                .operate {
                                    padding: 12px 15px;

                                    .sui-btn {
                                        display: inline-block;
                                        padding: 2px 14px;
                                        box-sizing: border-box;
                                        margin-bottom: 0;
                                        font-size: 12px;
                                        line-height: 18px;
                                        text-align: center;
                                        vertical-align: middle;
                                        cursor: pointer;
                                        border-radius: 0;
                                        background-color: transparent;
                                        margin-right: 15px;
                                    }

                                    .btn-bordered {
                                        min-width: 85px;
                                        background-color: transparent;
                                        border: 1px solid #8c8c8c;
                                        color: #8c8c8c;

                                        &:hover {
                                            border: 1px solid #666;
                                            color: #fff !important;
                                            background-color: #666;
                                            text-decoration: none;
                                        }
                                    }

                                    .btn-danger {
                                        border: 1px solid #e1251b;
                                        color: #e1251b;

                                        &:hover {
                                            border: 1px solid #e1251b;
                                            background-color: #e1251b;
                                            color: white !important;
                                            text-decoration: none;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }

                .page {
                    width: 733px;
                    height: 66px;
                    overflow: hidden;
                    float: right;

                    .sui-pagination {
                        margin: 18px 0;

                        ul {
                            margin-left: 0;
                            margin-bottom: 0;
                            vertical-align: middle;
                            width: 490px;
                            float: left;

                            li {
                                line-height: 18px;
                                display: inline-block;

                                a {
                                    position: relative;
                                    float: left;
                                    line-height: 18px;
                                    text-decoration: none;
                                    background-color: #fff;
                                    border: 1px solid #e0e9ee;
                                    margin-left: -1px;
                                    font-size: 14px;
                                    padding: 9px 18px;
                                    color: #333;
                                }

                                &.active {
                                    a {
                                        background-color: #fff;
                                        color: #e1251b;
                                        border-color: #fff;
                                        cursor: default;
                                    }
                                }

                                &.prev {
                                    a {
                                        background-color: #fafafa;
                                    }
                                }

                                &.disabled {
                                    a {
                                        color: #999;
                                        cursor: default;
                                    }
                                }

                                &.dotted {
                                    span {
                                        margin-left: -1px;
                                        position: relative;
                                        float: left;
                                        line-height: 18px;
                                        text-decoration: none;
                                        background-color: #fff;
                                        font-size: 14px;
                                        border: 0;
                                        padding: 9px 18px;
                                        color: #333;
                                    }
                                }

                                &.next {
                                    a {
                                        background-color: #fafafa;
                                    }
                                }
                            }
                        }

                        div {
                            color: #333;
                            font-size: 14px;
                            float: right;
                            width: 241px;
                        }
                    }
                }

                .pagination {
                    display: inline-block;
                    position: relative;
                    left: 50%;
                    transform: translateX(-50%);

                }
            }
        }
    }
</style>